Mine does the same thing. Only on cold starts, goes away if I give it gas. Been going on the past 2 years...only does it in the winter.

 

I'm not one to usually talk **** but did you even read what the OP posted above you? No warm up... My god dude, please refrain from trying to help anyone. You can't even help yourself.

 

Fun fact.

Lunch time I got P0451. New Evap purge valve time.

 

Anyone saying this is normal, it's nice u tell yourself that so u don't need to worry about fixing it, but no it's not normal. If it was, it would do it from day one not seven years in

 

^This I couldn't agree more

I don't know what to say, Since I have an issue that isn't triggering a check engine light or anything, But the issue is there I can see it on my aeroforce lol

Car have minds of there own and I hate it.

In for results or an answer of some sort for future problems. Free bump

 

It's not like it's a huge issue and doesn't affect driveability.

 

I'll figure it out as soon as I got use of my arm back. Can't even drive now so few more weeks

 

I haven't checked mine as of late. I tuned the **** out of the fuel trims.

When my valves were good and coked up they would cause misfires on cold start. It was very obvious and you could feel them in your seat.

 

Funny enough I'm experiencing negative fuel trim creep

Maybe it's just winter gas. I'm running e25

 

My trims are a total pita to tune, u get em good and pretty well 0ed and the next day they will be off by + or - 4 again. Could be constant different temps I guess. So annoying

 

Apperently I had the hose that goes to evAp solenoid unplugged lol oops

 

Wow, at least you figured it out.

 

yup, feel quite dumb lol

 

Ya it still does it. Sigh

 

Mine does this as well, I suspect a tuning issue. I have an unknown tune on my car, rough idles on cold starts sometimes and usually throws a P0014 Code for an exhaust cam solenoid problem.

 

Well I threw a winter tune in now, see if it changes.

 

updates? my car is starting to almost stall out after sitting for 7 or 8 hours, just started after i last got gas, starting to wonder if my evap solenoid is starting to go out, my cars at 65k kms

 

Mine stopped, but still rich at idle, new evap solenoid helped. Still waiting on parts from black friday

 

hm ok, ill check my evap solenoid, thanks.

 

evap was fine, car sat over night, started fine in the morning, then the car sat for 9 hours while i was at work and struggled to start initially, then was fine..... could bad gas cause this? started around the time i got gas but i figured it was a coincidence. fuel trims like to sit around -4.6

 

Mine does it when not in garage I notice. My fuel trims are in the - as well, which means it's getting to much fuel. What's ur a/f at idle?

 

my a/f are 100% normal right now, 14.5 to 14.9.

 

Tom send me ur tune that its currently on

 

gotta wait till my new motherboard comes. computer is dead.

 

Ouch that sucks. Txt me when u sent it